Are wavelengths well defined or vague?

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The discussion highlights that while some boundaries between electromagnetic spectrum categories, such as UV and visible light, are widely accepted, many are vague and can be subject to philosophical debates like the Sorites Paradox. There is no defined upper limit to gamma ray energy, indicating that they can possess extremely high energy levels. The highest energy gamma rays detected are often suspected to originate from quasars. The conversation also touches on the emission of energy from blackbody spectra, suggesting that high-energy photons are comparatively rare. Overall, the topic emphasizes the complexity and ambiguity in defining boundaries within the electromagnetic spectrum.
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As in, for example, boundaries between UV and visible, UV-A and UV-B, blue and purple, gamma rays and x-rays. Or are they ill-defined and subject to the Sorites Paradox?

Also, does anyone know if there is a highest level of energy a gamma ray can have?

Thanks!
 
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There are some bands with very widely-accepted boundaries, but, for the most part, the boundaries are vague. There is no limit to gamma ray energy.

- Warren
 
Okay. Which are the widely accepted boundaries? And what's the highest energy gamma ray ever detected? (I would suspect that it came from some quasar)... Though since all energy sources are emitted from a blackbody spectrum, there would be comparatively few photons of such wavelengths
 

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